Backgroundrb devel - Mar 2007 - Does Bdrd 2.x handle fragment caching still?

From the API I was unable to determine if the new architecture for  
BackgrounDRB still handles fragment caching?  If so, how can I use it?

I am upgrading to the new architecture from the old one and used this  
functionality in the old code base.

I like the new architecture, thank you.

Cheers,

Matt